To me, reloading is another big aspect of the gun hobby..../ and while I do save some money - it just means I shoot more on the same ammo budget / and in reality, I'd reload even if the cost was no savings --- because I like the process - and I like shooting my own ammo - and to some extent customizing it to a specific gun or for some of the young shooters in my family ( since I'm now teaching my grandkids to shoot and reload ) just like my grandpa did with me some 55yrs ago now...
But I think studying the process of reloading ...looking at alternatives on different powders - velocities and pressures at Min vs Max in a published recipe vs a different recipe ..and comparing the powders - and different weights of bullets...is interesting.
Just like learning how to take a specific model of gun - down to a bare frame - inspecting each part ...lubing it properly ( maybe tuning up the gun a little ) and reassembling it properly..understanding the mechanism inside the gun ....is a big part of the pleasure, for me, of owning that specific gun -- reloading, and shooting your own ammo, feels the same way...
or really understanding each step - that the press does - especially in a complex progressive press like the Dillon 650 - in the reloading process / studying the manual - learning what each spring is doing in the machine, all of the fine adjustments...that contribute to a high quality cartridge...is part of the fun as well...
For me, there is a lot to this hobby...